Commonality of elastic relaxation times in biofilms

作者: T. Shaw , M. Winston , C. J. Rupp , I. Klapper , P. Stoodley

DOI: 10.1103/PHYSREVLETT.93.098102

关键词: Relaxation (NMR)ChemistryPhenotypic responseElasticity (economics)PolymerBiophysicsBiofilmMaterial propertiesStress (mechanics)

摘要: Biofilms, sticky conglomerations of microorganisms and extracellular polymers, are among the Earth's most common life forms. One component for their survival is an ability to withstand external mechanical stress. Measurements indicate that biofilm elastic relaxation times approximately same (about 18 min) over a wide sample biofilms though other material properties vary significantly. A possible significance this time scale it shortest period which can mount phenotypic response transient

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